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Cloud Elves Infrastructure Overview

Architecture

All services run on a single DigitalOcean VPS (box.cloud-elves.eu, Debian 13) managed by Ansible and deployed as Docker Compose containers.

Services

Service	URL	Purpose
Caddy	(internal)	Reverse proxy, automatic HTTPS via Let's Encrypt
Gitea	https://git.cloud-elves.eu	Git hosting, SSH clone on port 2222
Outline	https://docs.cloud-elves.eu	Wiki and documentation
Dex	https://auth.cloud-elves.eu	OIDC identity provider
LLDAP	https://ldap.cloud-elves.eu	User directory with web UI
Static site	https://cloud-elves.eu	Company website (also www)

Supporting Services (internal only)

Service	Used by
Postgres (gitea-db)	Gitea
Postgres (outline-db)	Outline
Redis	Outline

How a request reaches your app

sequenceDiagram
    participant Browser
    participant Caddy
    participant App as Gitea / Outline / etc.

    Browser->>Caddy: HTTPS request (port 443)
    Note over Caddy: Terminates TLS<br/>Auto-issued Let's Encrypt cert
    Caddy->>App: Forward to internal port
    App-->>Caddy: Response
    Caddy-->>Browser: HTTPS response

Authentication

All authentication flows through a centralized identity stack.

sequenceDiagram
    participant User
    participant App as Gitea / Outline
    participant Dex as Dex (OIDC)
    participant LLDAP as LLDAP (Directory)

    User->>App: Visit app
    App->>Dex: Redirect to SSO
    Dex->>User: Show login form
    User->>Dex: Enter credentials
    Dex->>LLDAP: Verify credentials
    LLDAP-->>Dex: OK
    Dex-->>App: Auth token
    App-->>User: Logged in

Onboarding a new team member

Create their account in LLDAP (https://ldap.cloud-elves.eu)
They can immediately log into all services via SSO — accounts are auto-created on first login

Removing a team member

Delete or disable the user in LLDAP
Their SSO sessions will expire (existing sessions may persist until token expiry)

Networking

Exposed Ports

Port	Protocol	Service
22	TCP	SSH (host access)
80	TCP	HTTP (redirects to HTTPS)
443	TCP + UDP	HTTPS (all web services)
2222	TCP	Gitea SSH (git clone)

All other communication happens over internal Docker networks. UFW firewall blocks everything else.

Internal Networks

Network	Connects
frontend	Caddy to all web-facing services
identity	Dex to LLDAP
gitea-backend	Gitea to its Postgres
outline-backend	Outline to its Postgres and Redis

DNS Records

Record	Type	Points to
`cloud-elves.eu`	A	188.166.60.12
`box.cloud-elves.eu`	A	188.166.60.12
`www.cloud-elves.eu`	CNAME	box.cloud-elves.eu
`git.cloud-elves.eu`	CNAME	box.cloud-elves.eu
`auth.cloud-elves.eu`	CNAME	box.cloud-elves.eu
`ldap.cloud-elves.eu`	CNAME	box.cloud-elves.eu
`docs.cloud-elves.eu`	CNAME	box.cloud-elves.eu

Data & Persistence

All persistent data is in Docker named volumes under /var/lib/docker/volumes/ on the host.

Volume	Contains
`caddy-data`	TLS certificates
`caddy-config`	Caddy runtime config
`lldap-data`	User directory (SQLite)
`dex-data`	Dex database (SQLite)
`gitea-data`	Git repositories, Gitea config
`gitea-db`	Gitea Postgres data
`outline-data`	Uploaded files/attachments
`outline-db`	Outline Postgres data

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